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Re: Will this pressure cooker work?
    #72047 - 01/19/00 01:21 AM (22 years, 10 months ago)

[QUOTE]Originally posted by Multioptik:
[B]I recently got an old 21 qt. Presto pressure cooker on an ebay auction. On the lid there is the pressure gauge on one side, a little piece in the middle which I assume is a safety valve which will manually release excess pressure when pushed to the side?

You are correct, except that this Presto uses a pressure valve that simply opens when the internal pressure rises above around 15psi.

And on the opposite side from the pressure gauge is a little metal piece sticking straight up from the lid about 3/4" or so. This piece has a hole in the middle that goes straight through the lid. I always thought pressure cookers were supposed to be airtight! Am I missing a piece or something?

Yes you are, this is a steam vent and you need a rocker (also called a stopcock) that sits on top of the tube. When the pressure builds to 15psi this will begin to rock back and forth to release small amounts of steam and maintain a constant pressure of 15psi.
You can buy these at kitchen or hardware stores or directly from Presto.

Also, the pressure gauge needle is stuck halfway between 0 and 5 even though I have not yet tried the cooker. Is it innacurate or is this normal?

Could be o.k. or could be screwed up. It doesn't really matter though because most sterilizations for cultivations call for 15 psi and that's the maximum your Presto will build up even if the guage is faulty.

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Re: Will this pressure cooker work?
    #72049 - 01/19/00 05:05 AM (22 years, 10 months ago)

Be careful with a used preasure cooker. A friend of mine had one explode do to some unknown flaw and broke out the window in his kitchen LOL. Plus he lost his jars and substrate. You cannot go wrong with an All-American Preasure cooker. You can either get it from Fungi Perfecti or Appliances.com. They are a little pricey but well worth it.

-Chester Copperpott-

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Registered: 05/07/99
Posts: 14
Last seen: 21 years, 7 months
Re: Will this pressure cooker work?
    #72050 - 01/19/00 06:03 AM (22 years, 10 months ago)

If you get a mirro they have a valve that will blow out before exploding.They are only about $60 bucks at Sears.

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Re: Will this pressure cooker work?
    #72051 - 01/19/00 11:47 PM (22 years, 10 months ago)

Hey guys. All Presto cookers have a blow out valve, I've never seen one without it. Also a good idea if you have a used one is buy a replacement gasket, old gaskets crumble and won't seal properly. As for blowing up, the only times I've ever heard of cookers blowing is when you don't completely turn the handle and lock it. Either that or some structural problem with the lid or lock tabs on the unit.

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Re: Will this pressure cooker work?
    #72052 - 01/20/00 01:18 AM (22 years, 10 months ago)

Hey Mulitioptic,,

You ought to be able to see a Model number under the name on the name plate,,,Like mod. 21 ,,,,or mod. 7 ,,,,,,,or something like that,,,,,,,my buddy has found the same model cooker can have more than one kind of "giggler" depending on when it was made.

If you get the model number and post it I may be able to tell you what kind of "giggler" it uses ,,,and some tips on it's use depending on said giggler.

But my buddy has a boatload of used units he's gotten over the years and they all work,,,there mostly Presto's too.

Actually he says he would take an older Presto over one of their new models any day.
He goes on to say the only reason they look the way they do today is because there cheaper for the Co. to manufacture,,,not because there necessarly a better cooker!

Per Hoyt :-)

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